1. Radium geochemistry of groundwaters in Paleozoic carbonate aquifers, midcontinent, USA;Banner;Applied Geochemistry,2000
2. Natural radioactivity in bottled natural spring, mineral and therapeutic waters in Poland;Chau;Journal of Radioanalytical and Nuclear Chemistry,2009
3. The EML Pulse Ionization Chamber Systems for Rn Measurement, Rep. EML-437;Fisenne,1985
4. Hydrologic and Geochemical Studies of Selected Natural Radioisotopes and Barium in Groundwater;Gilkeson,1983
5. Natural radionuclides in bottled water in Austria;Karlik;Journal of Environmental Radioactivity,2003